baber/WOPTO huggingface dataset:
Patent GB-468555-A (GB)
Title: Process for the production of new derivatives of barbituric acid
Filed: 1935-11-01
Abstract: 5 : 5-Disubstituted barbituric acids and their N-substitution products, in which one of the 5-substituents is the furfuryl group and the other is either a phenyl or a furfuryl group, are prepared by the methods described in the parent Specification.  The products are useful as hypnotics.  Examples describe the preparation of (1) 5-phenyl-5-furfuryl-barbituric acid by treating sodium phenylbarbiturate with furfuryl bromide in the presence of copper sulphate; (2) 5 : 5-difurfuryl-barbituric acid by interaction of barbituric acid with two molecular proportions each of furfuryl chloride and alkali.
Patent GB-500992-A (GB)
Title: Improvements in followers for operating latch bolts and other bolts
IPC: E05B3/08
Filed: 1937-11-23
Abstract: 500,992. Latch followers. LEGGE & CO., Ltd., J., and LEGGE, J. E. Nov. 23, 1937, No. 32192. [Class 44] To avoid slackness of fit between a latch follower and spindle, the follower is provided with a spring exerting lateral pressure. As shown, a two-armed follower A has a bowed plate spring E disposed in, and at one side of, a rectangular aperture receiving a squaresection spindle H, the spring urging the spindle against the opposite side. To retain the spring in place its ends are bent down and provided with projections g which snap into corresponding recesses in the end faces of the follower boss a.
Patent GB-193182-A (GB)
Title: Improvements in vertical boilers
IPC: F22B13/02
Filed: 1921-12-01
Abstract: 193,182. Kirke, P. St. G. Dec. 1, 1921. Vertical boilers. - In a vertical boiler having parallel cross water-tubes G arranged within an extension of a cylindrical fire-box, the heating surface of the tubes is greater than 1.6 times the heating surface of the fire-box owing to a suitable arrangement of the manholes B giving access to the tubes. Two or more rows of manholes are provided opposite each end of the tubes. The major axes of the manholes of adjacent rows may be alternately vertical and horizontal, and the major axes of the manholes of one row at one end may be at right-angles to the major axes of the manholes of the row at the other end.
Patent GB-491067-A (GB)
Title: Improvements in and relating to intermittent-feed mechanisms for motion picture cameras and projectors and the like
IPC: G03B1/22
Filed: 1936-11-25
Abstract: 491,067. Kinematograph apparatus. MASSOLLE GES., J., and MASSOLLE, J. Nov. 25, 1936, Nos. 32282, 32283, and 32284. Convention dates, Nov. 25, 1935, June 12, 1936, and June 12, 1936. [Class 97 (i)] In claw feed mechanism, claw movement is effected by cranks or eccentrics, of which at least two rotate at the same speed in opposite directions ; the path of the claws, while they are feeding the film through an arcuate guide, may be arcuate and may be traversed while the cranks &c. are moving through less than 160‹. Fig. 1 shows a claw member 1 carried by a crank-pin on a gear-wheel 6 meshing with an equal wheel 10 having a crank-pin 11 connected by a link 8 to a pivot 9 on the member 1. The member 1 may comprise thin webs 15, 16, 17, Fig. 2, connected by a web 18 carrying claws 2, and the film guides 4, 5, Fig. 1, may be shaped in accordance with the claw path. The movements produced by the crank-pins may be 90‹ out of phase, or the pin 11 may have a small lead with respect to this phase difference; motion diagrams for different leads and lengths of claw arm are included in the drawings. Fig. 5 shows a modification in which the claw arm 38 is linked to the pin of the crank R by an elbow lever 32, 36, itself linked to the pin of a crank r by an arm 35. The rear end of the arm 38 may slide in a fixed bearing or pivoted guide, may be pivoted to a rocking lever, or may be linked to a rotating arm.
Patent GB-739383-A (GB)
Title: Improvements in or relating to shoemaking methods and to machines adapted for use therein
IPC: A43D11/00
Filed: 1952-12-22
Abstract: 739,383. Sewing-machines : protecting shoe uppers during lasting &c. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). Dec., 21 1953 [Dec. 22, 1952], No. 32389/52. Classes 17 (2) and 112. In shoe-making wherein a thin protective cover 10, such as rubber hydrochloride sheet, is applied to the shoe upper-material 8, a seam is sewn through the upper material while the cover is in place, and a score or slit is formed in the cover extending along the line of the seam, during the sewing of the latter, to facilitate clean subsequent removal of the cover. The seam is produced by a needle 22, a presser foot 16 is arranged to operate at one side of the seam, a presser roll 28 co-operating with a four-motion feed dog 32 is arranged to operate on the other side of the seam, and a knife 14, having a cutting edge 44, is arranged to operate on the cover along the line of sewing adjacent to and ahead of the needle. The presser wheel is journaled on a pin 42 carried by a bracket 26 urged downwardly by spring means (not shown). The presser foot and knife are carried by a block 54, the knife being adjustable longitudinally by means of a screw 52. The block is carried adjustably, in a direction transverse to the line of sewing, by an arm 34 pivoted at 36 to a bracket 38 secured adjustably by means of a screw and slot connection 60 to the bracket 26. A tension spring 40 connected between pin 42 and arm 34 draws the latter downwardly, a screw 56 carried by the arm abutting bracket 38 to limit the movement of the arm. Bracket 26 may be lifted from the work support 30 by means of a treadle. Specifications 651,870 and 687,317 are referred to.
Patent GB-1080398-A (GB)
Title: Smokers' lighters
IPC: F23Q2/36
Filed: 1966-07-19
Abstract: 1,080,398. Smokers lighters. HEINRICH MALTNER G.m.b.H. July 19, 1966 [July 20, 1965], No. 32414/66. Heading F4F. The fuel tank 1 of a gas filled smokers lighter, of plastic and constituting the casing of the lighter is provided externally on all sides with a deposited coating 2 of nickel. An opening in the tank receives a device 3 containing the burner with fuel valve and the filling valve. The ignition mechanism 4 is secured by adhesive to the upper side of the tank and the individual parts thereof are composed of plastic with a deposited coating of metal.
Patent GB-1061148-A (GB)
Title: Improvements in or relating to ladders
Inventor: CROKER CLAUDE
IPC: E06C7/08
Filed: 1962-08-23
Abstract: 1,061,148. Ladders. IMPERIAL ALUMINIUM CO. (WALES) Ltd. Aug. 22, 1963 [Aug. 23, 1962], No. 32431/62. Heading A6L. A ladder comprises rungs with longitudinal ribs 12 the ends of which engage a face of the inner or outer wall 13, 14 respectively of the tubular stile 10 each end. of a rung is splayed into engagement with recesses 16 or projections on the outer sides of a stile.
Patent GB-618389-A (GB)
Title: Improvements in or relating to the control of gas turbines
IPC: F02C9/28
Filed: 1946-11-01
Abstract: 618,389. Interlocking levers. PEREGRINE, E. P., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Nov. 1, 1946, No. 32476. '[Class 80 (iii)] [Also in Group XXVI] In a gas turbine plant for ship-propulsion, operating levers are provided for controlling the supply of fluid to the two hydraulic clutches of the reversing-gear, the supply of fuel to the primary and reheat combustion chambers and the operation of a valve for byepassing the lowpressure turbine. These levers, together with a lever moving in accordance with the ship's telegraph, are mounted on one axis and cooperate with three plates at X, Fig. 5, sliding in a plane parallel with that axis to provide an interlocking mechanism which permits the several levers to be moved only in their proper sequence and in accordance with the telegraph.
Patent GB-643179-A (GB)
Title: Improvements in drill bits for hammer drills having hard metal cutting edges and hard metal bodies forming such cutting edges
IPC: E21B10/58
Filed: 1947-12-09
Abstract: 643,179. Percussive drills. AKTIEBOLAGET ATLAS DIESEL, and LARCEN, J. A. Dec. 9, 1947, No. 32486. [Class 124] In a drill bit having one or more cutting edges formed by hard metal inserts, the breadth b of the insert 1 at the periphery is equal to or greater than the height h of the insert at the centre of the bit, and the height of the insert in the longitudinal direction of the bit increases from the periphery to the centre. The breadth of the insert may be equal to or greater than one-third of the diameter of the bit.
Patent GB-325014-A (GB)
Abstract: 325,014. Imray, O. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 8, 1928. Divided on 326,482. Crayons and sealing-wax are prepared by dissolving at raised temperature a cellulose ether or ester of an acid of high molecular weight, e.g., one having at least seven carbon atoms, such as a fatty acid, resin acid, or naphthenic acid, in a. fatty acid, fat, or aliphatic hydrocarbon solid at ordinary temperatures, adding a, dyestuff or pigment, and casting into moulds. In examples, crayons are made by dissolving cellulose laurate in stearic acid and adding dyestuff, or by dissolving ethyl cellulose in a mixture of stearic acid and ceresin, and adding carnauba wax and a fatsoluble. azo-dyestuff; cellulose laurate dissolved in mutton suet, beeswax, carnauba wax, and paraffin and coloured forms a crayon for writing on glass, porcelain, metals, and linen; sealing- wax of less than the usual specific gravity consists of cellulose trilaurate dissolved in paraffin, with the addition of gum elemi and a red organic pigment dyestuff.
Patent GB-257152-A (GB)
Title: Process and apparatus for obtaining light hydrocarbons and carbon from heavy hydrocarbons, coal tar, pitch and the like
IPC: C10G9/42
Filed: 1925-12-24
Abstract: 257,152. Knapp, W., and Wandsbeker Maschinenfabrik und Eisenbauanstalt B. Fischer & C. Steiding. Dec. 24,1925. Oil gas; materials for making gas, coke, and other products.-Heavy hydrocarbons, coal tar, or pitch are destructively distilled to yield combustible gas, light hydrocarbons, and carbons suitable for use as fuel. Retorts 8 heated by a furnace 2, receive through a door 10, a horizontal cylindrical container 21 filled with the material to be distilled and having a longitudinal slot in its upper side covered by a loose lid 24. The heat of the retort causes the liquid to boil and lifts the lid 24. The liquid flows on to the hot wall of the retort where carbon is formed and - vapours are driven off. The vapours pass by pipes 12, 14, through oil contained in a still 13 and thence to coolers which condense light hydrocarbons. The remaining vapours are compressed to separate further constituents and to leave gas consisting mainly of methane and suitable for lighting or other purposes.
Patent GB-1037204-A (GB)
Title: Improvements in and relating to external and internal shoe-drum brakes
IPC: F16D65/14
Filed: 1964-08-11
Abstract: 1,037,204. Combined external and internal shoe-drum brakes. GOODYEAR TIRE & RUBBER CO. Aug. 11, 1964 [Aug. 14, 1963], No. 32615/64. Heading F2E. In a combined external and internal shoedrum brake, a brake housing 9 is pivotally mounted for radial movement relatively to the brake drum 1 and a friction block 27 is mounted in the housing 9 and adapted to engage the radially outer surface of the drum, a second friction block 18 being mounted in the housing and adapted to engage the radially inner surface of the brake drum under the influence of piston and cylinder means 16, 10b,the friction block 18 being circumferentially offset from the centre axis 32 of the piston means 16 in a direction opposite to the normal direction of rotation 31 of the brake drum 1, the offset producing a moment of rotation to the second friction block which is substantially equal and opposite to the moment of rotation imparted to the second friction block by the rotation of the brake drum, the pivotal movement of the housing 9 tending to create a self-energizing action of the brake. When pressure is applied beneath the piston 16 causing radial movement of the second friction block 18 against the inner surface of the brake drum a force indicated by the arrow 32 is directed on to the second friction block and offset from the centre line 33 of the second friction block by the amount indicated generally by the numeral 26. This causes a moment of rotation of the second friction block 18, backing plate 19, and piston 16 in a counterclockwise direction as indicated by the arrow 32a. At the same time, engagement of the second friction block 18 with the brake drum also causes a force tangential to the curvature of the friction block 18, as indicated by the arrow 34, and since the force indicated by this arrow is offset from the top of the piston 16 by a distance D, indicated by reference numeral 35, a moment of rotation is imparted to the friction block 18, backing plate 19 and the piston 16 in a clockwise direction equal to force 34 times distance 35 as indicated by the arrow 34a. By this means the moment of rotation in the counter-clockwise direction defined by the force 32 times the offset 26 indicated by the arrow 32a is equal to the moment of rotation in a clockwise direction defined by the force 34 times the distance 35 and indicated by the arrow 34a so that the rotational forces will be equal and opposite and thereby cancel each other. Any slight difference in the moments of rotation is overcome by the close fitting alignment of a pin 22 welded to the backing plate 19 and slidable in a hole 25 provided in the housing 9.
Patent GB-1349960-A (GB)
Title: Method of purifying hydrates of calcined dolomite and magnesite
IPC: C01F5/16
Filed: 1971-07-13
Abstract: 1349960 Separating solids G & W H CORSON Inc 13 July 1971 [14 July 1970] 32785/71 Headings B2H and B2P Dry, dihydrated, calcined dolomite and/or dry, hydrated, calcined magnesite, having a particle size distribution such that at least the major portion and up to 95% thereof, is -325 mesh (Tyler) and the remainder is larger than 325 mesh, is/are dispersed in an upwardly moving stream of air, in a confined zone, adapted in conjunction with centrifugal force acting primarily on the larger particles selectively to carry a fine fraction of the hydrate upwardly and outwardly to a zone separate and distinct from that to which the remainder is directed, and the fine fraction which has a lower silica content than the original hydrate is separately, recovered. In an air classifier having outer and inner walls 1, 3 defining outer and inner chambers 13, 14, the dry hydrate is fed through a conduit 10 and a chute 11 onto a rotating distributing plate 7 which whirls it off into an upwardly moving air stream produced by a fan 9. The air stream entrains the fine particles upwardly and outwardly past the fan 9 and thence downwardly into the chamber 13 from which they are removed via an exit 2. Larger and heavier particles by virtue of the centrifugal force imparted to them by the distributor plate 7, and aided by selector blades 8, are directed outwardly towards the wall 3 beneath horizontally adjustable plates 15 from where they fall through the chamber 14 and are removed through an exit 4. The rate of air flow is regulated by adjustment of the plates 15. The air stream passes back from the chamber 13 into the chamber 14 through openings 16 and air vanes 17.
Patent GB-1039642-A (GB)
Title: Chairs or seats
Inventor: RASSIER CECIL ARTHUR
IPC: A47C3/026
Filed: 1961-09-13
Abstract: 1,039,642. Seat adjustments. D. SEBEL & CO. Ltd. Sept. 13, 1962 [Sept. 13, 1961], No. 32796/61. Heading A4J. In a chair having a back rest 6 adjustable forwardly and rearwardly with respect to a seat 4, a back rest frame 5 is provided with a forwardly extending portion 21 slidably supported on a seat frame 3. The seat frame is formed by a pair of laterally outwardly facing channel section side members 17 in each of which a portion 21 of the seat frame is slidably supported. The two portions 21 are braced by a rod 23 which slidably engages in slots 25 in the side members 17. The rod 23 can be secured in any required position lengthwise of the slots 25 by means of a spigot 27 secured to the rod and a nut 28. The height of the chair is adjustable by means of a collar 15 and thumb screw 16. Spring means 11 are provided to resist the weight of the person seated on the chair. The upward movement of the column 2 is limited by a pin 13 engaging in a suitable hole 14.
Patent GB-447334-A (GB)
Title: Improvements in or relating to breathing apparatus
IPC: A62B7/00
Filed: 1934-11-15
Abstract: 447,334. Breathing-apparatus. DAVIS, SIR R.. H., 187, Westminster Bridge Road, London. Nov. 15, 1934, No. 32905. [Class 81 (ii)] In breathing-apparatus comprising a bag 1 having a canister 5 and oxygen cylinder 2 connected thereto, and particularly of the kind wherein breathing to and from the bag takes place through the canister, the canister is of such form, preferably annular, as wholly or partly to enclose the oxygen cylinder. As shown, the cylinder 2 is mounted vertically and the upper closed end extends into a recess in the canister. The cylinder may have a single controlling valve 4 or an additional reducing valve delivering oxygen automatically. The canister has a spigot connection 7, 8, with the bag and is connected to a mouth-piece or mask 11 by a single flexible tube 10, in which case the apparatus is valveless, or by two such tubes controlled by inhaling and exhaling valves. The bag may be of annular shape to enclose wholly or partly the cylinder and the canister.
Patent GB-324933-A (GB)
Title: Improvements in electric trolley heads
IPC: B60L5/06
Filed: 1928-10-03
Abstract: 324,933. Avtsine, A. Oct. 3, 1928. Divided on 307,552, [Class 104 (iii), Railways &c., Electric.]. Force-feed lubricating. - In an electric trolly wheel m mounted on a fixed spindle n, oil is fed to axial and radial passages 9, 10 in the spindle by spring- pressed pistons y arranged in oil reservoirs x, x', fitted in recesses in the cheeks o of the carrier at the opposite ends of the spindle. The reservoirs are fitted with cover plates 12, x<2> through which extends stems z secured to the pistons, and are adapted to be charged with oil through passages 7 in the cheeks which are normally closed by plugs 11 and which register with openings in the reservoir, the pistons being drawn outward during filling by rods screwed into apertures 13 in the stems z.
Patent GB-1024106-A (GB)
Title: Improvements in or relating to natural circulation steam boilers
IPC: F22B21/06
Filed: 1964-08-14
Abstract: 1,024,106. Steam generators; superheaters. HENSCHEL - WERKE A.G. Aug. 14, 1964 [Aug. 16, 1963], No. 33233/64. Heading F4A. A boiler having a cylindrical combustion chamber bounded by walls formed of straight water tubes which extend vertically between toroidal headers has a superheater introduced into the combustion chamber through the central aperture in one of the headers. The superheater, Fig. 2, comprises coaxially arranged tube helices 8 and 9 which form flues 12, 13, 14 for the passage of combustion gases. The superheater is shielded from radiant heat by a plate 7. Steam entering the superheater from a tube 16 flows along a distributer 15 with a swirling motion which separates entrained water before entering the tube helices which may be connected to form series flow paths for the steam and the combustion gases, as shown on the right, or may be connected to form parallel flow paths as shown on the left. The flow of combustion gases is regulated by a valve 21 which is controlled by a thermometer 19 in the steam delivery pipe 18. The valve is also controlled by a flow detector 23 which only permit the passage of combustion gases when the steam is being withdrawn from the superheater.
Patent GB-979732-A (GB)
Title: Improvements in or relating to light modulating apparatus
Inventor: LEWIN LEONARD
IPC: G02F1/09
Filed: 1962-08-30
Abstract: 979,732. Light modulation apparatus. STANDARD TELEPHONES & CABLES Ltd. Aug. 30, 1962, No. 33278/62. Heading H4F. Light modulation apparatus utilizing the Kerr magneto-optical effect includes a first, magnetic plane reflecting surface 1, a second plane reflecting surface 3, means for directing a focused beam of plane polarized light 2 on to one of the reflecting surfaces at such an angle thereto that the light suffers multiple reflections at surface 1 before emerging from between the surfaces, and means for applying a variable modulating magnetic field H in the plane of surface 1. Surface 2 may also be of a magnetic material and have applied to it a variable magnetic field directed oppositely to that applied to surface 1. The incident light beam 2 is polarized with the electric vector parallel to the magnetic field H. A suitable material for a magnetic surface is nickel-iron. A suitable material for a non-magnetic surface is silver.
Patent GB-644198-A (GB)
Title: Improvements in or relating to fuel supply means for reversible multi-cylinder internal combustion engines
IPC: F01L13/00
Filed: 1946-06-05
Abstract: 644,198. Starting. KROON, B. C. June 5, 1946, No. 33302/48. Convention date, March 4, 1943. Divided out of 644,122. Drawings to Specification. [Class 7(v)] In a reversible engine having an even number of cylinders, the fuel pumps for adjacent cylinders are driven by opposite sides of the same cams for the two directions of rotation, the fuel being diverted to the other cylinder of the pair for reverse running. The arrangements are similar to those described in Specification 644,122, but the reversing device for each pair comprises a single casing, housing a grooved piston valve or plug cock and connected to the fuel injectors by a pair of pressure lines. Leakage grooves leading to atmosphere may be provided to drain off leaking fuel.
Patent GB-686839-A (GB)
Title: Improvements in or relating to electric current switches with magnetically controlled contacts
IPC: H01H5/02
Filed: 1949-12-30
Abstract: 686,839. Magnetic switches. HOLLISTER, F. L. March 30, 1951 (Dec. 30, 1949], No. 33341/49. Class 38 (v) In a thermal or other switch, contacts 14, 16 are closed when an armature 17 is sufficiently attracted by poles 18 and are opened by springs 19 when the attraction diminishes sufficiently; the variation of attraction is produced by the movement of a magnetic member connected to the thermal or other device. In the form shown, a permanent magnet 11 supplies flux to the poles 18 but the flux may be shunted to a variable degree through an alternative path comprising pole pieces 12, pole shoes 13 and a diverter 24 mounted on a rod 25 connected to the thermal element and having projections 27 which shunt the flux most effectively when they are opposite projections 30 on the pole shoes. Assuming the switch is for controlling an electric cooker, the latter is switched on and a control knob connected to a shaft 41 rotates gears 40, 39 which slide the pole shoes 13 along the pole pieces 12 to a selected position corresponding to the temperature desired. As the temperature rises the diverter 24 moves down till its projections 27 are sufficiently near the projections 30 to cause it to be suddenly attracted downwards to bring the projections in line, the diverter sliding on the rod 25 and compressing a spring 34. This sudden movement diverts the flux from the poles 18 and releases the armature 17 and opens the contacts 14, 16. In modifications the permanent magnet may be replaced by an electromagnet, or a magnet may replace the member 24, and the magnet 11 be dispensed with so that there is no shunt magnetic path.